Benzotriazole has been known for its great versatility. 1,2,3-Benzotriazole has already been used as a restrainer in photographic emulsions and as a reagent for the analytical determination of silver. More importantly, 1H-Benzotriazole has been extensively used as a corrosion inhibitor in the atmosphere and underwater. Also, its derivatives and their effectiveness as drug precursors have been drawing attention. Besides all the application mentioned above, the BTA can be used as antifreezes, heating and cooling systems, hydraulic fluids and vapor phase inhibitors as well.

Benzotriazole is a corrosion inhibitor for copper and its compounds. It prevents unwanted reactions on metal surface. Creates a passivation layer on the surface. Complex formed passivation layer prevents corrosion in this way. Water conditioning and indispensable products of metal chemistry.

Chemical Properties of 1,2,3-Benzoatrizole
yellow to beige solid
Uses
Benzotriazole (BT) is an anticorrosive agent well known for its use in aircraft deicing and antifreeze fluids but also used in dishwasher detergents. in vivo.
General Description
White to light tan crystals or white powder. No odor.
Air & Water Reactions
Dust may form an explosive mixture in air. Slightly soluble in water.
Reactivity Profile
The triazoles are a group of highly explosive materials that are sensitive to heat, friction, and impact. Sensitivity varies with the type substitution to the triazole ring. Metal chelated and halogen substitution of the triazol ring make for a particularly heat sensitive material. Azido and nitro derivatives have been employed as high explosives. No matter the derivative these materials should be treated as explosives.
Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition 1H-Benzotriazole emits toxic fumes. 1H-Benzotriazole can react violently during vacuum distillation.
Fire Hazard
Flash point data are not available for 1H-Benzotriazole. 1H-Benzotriazole is probably combustible.
1H-Benzotriazole Preparation Products And Raw materials
Raw materials
benzenetriamine Carbendazim Sodium nitrite Benzene Acetic acid glacial o-Phenylenediamine

Product information of 1,2,3-Benzotriazole
Our 1-H-Benzotriazole is a yellowish granular. It has been known for its great versatility.
It has already been used as a restrainer in photographic emulsions. More importantly, it has been extensively used as a corrosion inhibitor for copper and its alloys. Besides the applications mentioned above, the BTA can be used as antifreezes, heating and cooling systems, hydraulic fluids.

General Description of 1,2,3-Benzotriazole
PHYSICAL DESCRIPTION: White to light tan crystals or white powder. No odor.

1,2,3 Benzotriazole (BTA)

The 1,2,3 Benzotriazole is being produced at our partner Nantong Botao in Rugao/China. It is one of the most effective corrosion inhibitors for copper and copper alloy used in various industries. Further positive effects can be seen in protection of steel, grey iron, Cadmium and Nickel.

Detailed information on the product can be found in our Material Safety Data Sheet

Benzotriazole and its related Na salts do belong to the most effective corrosion inhibitors for copper and copper alloys. Only workable and chemical quite identical alternative is the Tolyltriazole - information on this substance are available on this website too.

Benzotriazole does further show positive effects in protection of steel, gray iron, cadmium and nickel.

Benzotriazole can be used in different applications in major industries. For example, it is used in cooling water or boiler systems by the industrial water treatment industry. Benzotriazole can be also used in coolants. Another application is the use as an additive in industrial lubricants, like e.g. drilling and cutting fluids. It does also work to protect silver ware in dishwashing tablets and can be further used in metal detergents.

As a corrosion inhibitor, Benzotriazole decreases the corrosion rate of metals and alloys. This works by forming a coating, a passivation layer, which prevents access of the corrosive substance to the metal or alloy underneath. This is of particular importance in industries where fluids routinely need to be in continuous contact with metals that require protection.

Benzotriazole shows outstanding thermic and oxidative stability and is also resistant to UV light. It does not negatively affect the appearance of the metal it's applied to. Benzotriazole can be considered as a non-sensitive item as far as handling storage is concerned. Under proper storage conditions, Benzotriazole has a shelf life of 24 months.

Benzotriazole is very bright in color so that solutions - either aqueous or in different solvents - are clear and almost colorless. A table of solubility properties and max concentrations is available on request.

Connect Chemicals does offer Benzotriazole in four different grades: granular, fine granular, flakes and crystals. The packing options do range from bags of 25kg to big bags/super sacks of 500kg net. Further we are able to offer product packed in fiber drum of 25kg net as well as in iron or plastic drums of 100kg net. Other tailor made packing options are available on request.

1,2,3-Benzotriazole forms a strong, wipe and cleaning resistant protection film on copper, its alloys and other metals. Neither does it influence the original appearance of the metal nor its conductibility of heat and electricity. The protective layer is wipe and cleaning resistant and leaves no greasy film. 1,2,3-Benzotriazole is mainly used as corrosion inhibitor in coolants, metalworking and hydraulic fluids and various water treatment applications.

Examples of applications

Benzotriazole is mainly used in the chemical industry to protect copper from being contaminated in order to safe its purity.

Benzotriazoles such as 1,2,3-Benzotriazole are petrochemical derived ingredients which have many functions but are often added to dishwasher detergents to prevent corrosion or rust which occurs from the addition of Oxygen-based bleaches in the moist environmentii. 1,2,3 -Benzotriazole can cause eye irritation, is harmful if swallowedvi and has been classified by the Dutch Expert Committee on Occupational Standards as a suspected Human Carcinogenvii. Benzotriazoles are also chemicals which have low biodegradabilityvi, a cause for concern considering they are often not removed during wastewater treatment and are also toxic to aquatic organismsvi. Benzotriazoles are essentially an additive to dishwasher detergents.

Benzotriazole is a bicyclic heterocyclic system consisting of three nitrogen atoms and fused benzene ring, shows wide range of biological and pharmacological activities. Benzotriazole can be synthesized using benzene-1,2-diamine and carboxylic acid. Benzotriazole posses wide spectrum of biological activities like including antibacterial, antifungal, antiviral, antiinflammatory, antihypertensive, analgesic properties. The present reviews attempted to gather the various developments in synthesis and biological activities of benzotriazole derivatives.

Local: 1,2,3-Benzotriazole: Benzene ring-fused azole compounds; white to off-white crystalline powder; insoluble in water, soluble in ethanol, melting at 98.5 C. Azole is a five-membered heterocycle compound containing unsaturated bonds and Nitrogen atoms. Triazole has three nitrogens. 1,2,3-Benzotriazole (1H-benzotriazole) has -N=N- bond whereas 2H-Benzotriazole has two -C=N- bonds. Benzotriazole is a parent material to produce UV-absorbers. Benzotriazole and its derivatives are versatile intermediates involved in the production of:

Corrosion Inhibitors
Anti-fading agent for metals
Antiseptic and Anticoagulant agent
Anti-fog for photograph
UV-absorbers
Anti-freeze Agent
Photoconductor
Copying systems
Pharmaceuticals, pesticide products and other specialty chemicals
Benzotriazole is a corrosion inhibitor for copper and its compounds. It prevents unwanted reactions on metal surface. Creates a passivation layer on the surface. Complex formed passivation layer prevents corrosion in this way. Water conditioning and indispensable products of metal chemistry.